/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.ignite.internal.storage.index;

import org.apache.ignite.internal.schema.BinaryTuple;
import org.apache.ignite.internal.storage.MvPartitionStorage;
import org.apache.ignite.internal.storage.RowId;

/**
 * Represents an Index Row - a set of indexed columns and a corresponding Row ID.
 */
public interface IndexRow {
    /**
     * Returns the serialized presentation of indexed columns as a {@link BinaryTuple} in
     * <a href="https://cwiki.apache.org/confluence/display/IGNITE/IEP-92%3A+Binary+Tuple+Format">IEP-92</a> format.
     *
     * @return Binary tuple representation of indexed columns.
     */
    BinaryTuple indexColumns();

    /**
     * Returns a Row ID.
     *
     * @return Row ID of the associated {@link MvPartitionStorage}.
     */
    RowId rowId();
}
